1 /* Like sprintf but provides a pointer to malloc'd storage, which must 2 be freed by the caller. 3 Copyright (C) 1997, 2003, 2013 Free Software Foundation, Inc. 4 Contributed by Cygnus Solutions. 5 6 This file is part of the libiberty library. 7 Libiberty is free software; you can redistribute it and/or 8 modify it under the terms of the GNU Library General Public 9 License as published by the Free Software Foundation; either 10 version 2 of the License, or (at your option) any later version. 11 12 Libiberty is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 Library General Public License for more details. 16 17 You should have received a copy of the GNU Library General Public 18 License along with libiberty; see the file COPYING.LIB. If 19 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, 20 Boston, MA 02110-1301, USA. */ 21 22 #ifdef HAVE_CONFIG_H 23 #include "config.h" 24 #endif 25 #include "ansidecl.h" 26 #include "libiberty.h" 27 28 #include <stdarg.h> 29 30 /* 31 32 @deftypefn Extension int asprintf (char **@var{resptr}, const char *@var{format}, ...) 33 34 Like @code{sprintf}, but instead of passing a pointer to a buffer, you 35 pass a pointer to a pointer. This function will compute the size of 36 the buffer needed, allocate memory with @code{malloc}, and store a 37 pointer to the allocated memory in @code{*@var{resptr}}. The value 38 returned is the same as @code{sprintf} would return. If memory could 39 not be allocated, minus one is returned and @code{NULL} is stored in 40 @code{*@var{resptr}}. 41 42 @end deftypefn 43 44 */ 45 46 int 47 asprintf (char **buf, const char *fmt, ...) 48 { 49 int status; 50 va_list ap; 51 va_start (ap, fmt); 52 status = vasprintf (buf, fmt, ap); 53 va_end (ap); 54 return status; 55 } 56
